JP2004338374A - Enclosed-cap with supplemental function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make an arrangement of a writing-liquid storage means for wet writing materials optimized. <P>SOLUTION: The wet writing materials is equipped with a shaft (30) holding a capillary tube nib (32) and an enclosed-cap (10) used for protecting the capillary tube nib (32) which can be attached to the shaft (30) with detachability. The range of the liquid storage means (12) is specified against a cap-inlet opening (10d) applied for holding the shaft (30) at the position in the enclosed-cap (10) alienated from the end (10a) of the enclosed-cap (10). The writing-liquid storage means is provided even in the enclosed-cap (10) by providing a separation wall (10e) having a hole (10f) through which the capillary tube nib (32) can contact the writing liquid stored in the writing-liquid storage means (12) and induce the liquid at attaching the enclosed-cap (10) to the shaft (30). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The invention relates to a wet writing implement according to the preamble of claim 1.

  Among the wet writing instruments as described above, for example, there is a so-called marker for marking with a marking fluorescent liquid so that a printed document is easy to read. To prevent the capillary nib from drying out, a sealing cap can be attached to the marker shaft when not in use to prevent the nib from being exposed to ambient air.

  Since the writing tool as described above has a high manufacturing cost, it is desirable that the writing liquid that has been initially filled can be replenished instead of being unavoidably discarded when consumed. For that purpose, various schemes are actually introduced. For example, writing instruments are known that have a refill opening that can be liquid sealably closed on a shaft. However, this approach is relatively expensive as it requires a seal that repeatedly and releasably connects the refill opening and the corresponding sealing element. In another method, a writing liquid storage tank is provided, and the liquid in the tank is pressed into the writing implement from the pen tip. In this case, since the writing liquid is forcibly filled, the storage means of the writing implement is overfilled, and often the writing liquid is discharged excessively at the beginning after filling.

  While there is a possibility that the writing implement can be refilled with writing fluid, it is also possible to try to increase the capacity of the storage means of the writing implement. However, such attempts often encounter a design challenge that this type of writing instrument must not be excessively thick and / or long.

  It is an object of the present invention to optimize the arrangement of said writing liquid storage means in a wet writing instrument of the type mentioned at the beginning of the description, taking into account the large storage capacity and / or the design of the writing instrument.

  The above object is achieved by the features of claim 1, and preferred embodiments are described in claims 2 to 9 following claim 1.

    By providing the writing liquid storage means in the closed cap in a range where there is an unused space at least partially capable of accommodating the writing liquid storage means, generally, for example, for design reasons, a closed cap having a large volume is effectively used. Can be used for In addition, since the pen tip can directly touch the writing liquid storage means provided in the closed cap, the writing tip is filled with the writing liquid preferably. In addition, the writing implement having the above-described configuration is inexpensive because it can be manufactured by a machine. Furthermore, the ratio of the existing writing implement divided into a relatively large or long shaft and a relatively small sealing cap is changed so that the dimensional ratio between the sealing cap and the shaft is 1: 1 or 2: 1 or the like. No problem. Simply replace the sealed cap with the emptied writing liquid storage means with a new sealing cap with the writing liquid storage means filled with writing liquid, or the capillary nib contacts the storage means in the sealed cap. Since the writing place is easy to use, the writing liquid can be replenished to the wet writing implement by replenishing the writing liquid through the place.

  The liquid storage means can be provided in the closure cap in various ways. According to a preferred embodiment of the present invention, a separating wall is provided at a position in the closure cap remote from the end of the closure cap for defining a liquid storage means for the cap inlet opening for accommodating the shaft. . The separation wall is provided with a hole that allows the capillary pen tip to come into contact with the writing liquid stored in the writing liquid storage means to attract the writing liquid when the sealing cap is attached to a shaft. I have. This prevents dust particles from entering the writing liquid storage means. Further, depending on the individual configuration of the writing liquid storage means, when the writing liquid initially filled in the storage means in the closed cap is completely consumed, a hole for accommodating the capillary pen tip is provided with a writing liquid replenishing opening. Can be used as

  To facilitate the movement of the writing liquid from the writing liquid storage means in the closed cap to the capillary pen tip, the capillary action in the storage means in the closed cap, i.e. the capillary action, is smaller than the capillary pen tip and Preferably, it is smaller than another storage means that can be formed in the storage device.

  In order to further increase the storage capacity of the writing implement, another, ie a second writing fluid storage means can be provided inside the shaft. In this way, substantially all unused space can be effectively utilized as writing liquid storage means.

  In this respect, it is preferable that the capillary action of the writing liquid storage means provided in the shaft is smaller than that of the capillary pen tip and larger than that of the writing liquid storage means in the closed cap.

  Also, in this case, the writing liquid storage means provided in the shaft can be shielded from the outside by a protective wall that appropriately holds the capillary pen tip, for example, in order to protect the writing liquid storage means from damage caused by contamination of surrounding dust particles. .

  The writing liquid storage means in the sealing cap and / or the shaft may be made of sponge material or fiber material. Other suitable materials may be used.

  The wet writing instrument of the present invention can be manufactured particularly inexpensively by attaching the separation wall in the cap and / or the protective wall of the shaft to the cap or the shaft in a liquid-sealable manner by ultrasonic welding.

  Hereinafter, preferred embodiments of the wet writing instrument of the present invention will be described with reference to the drawings. In the following description of the specific embodiments, the terms “left”, “right”, “down”, and “up” mean directions as viewed in the drawings from a position where reference numerals can be read normally.

  The wet writing implement S of the present invention viewed from the side shown in FIGS. 1 to 3 is a kite-shaped quadrilateral having the outer shape cut off at the tip of two isosceles triangles. The two cutting lines are parallel to each other and extend substantially perpendicular to the longitudinal centerline of the wet writing implement S. Although not shown, the thickness of the wet writing implement S perpendicular to the plane of FIGS. 1 to 3 is much smaller than the longitudinal dimension of the wet writing implement S on the plane of the drawing. As shown in FIGS. 1 to 3, all corners of the wet writing implement S are chamfered.

  The wet writing implement S of the present invention includes a sealing cap 10 and a shaft 30 as main components. Preferably, the sealing cap 10 fits snugly on the shaft to prevent liquid leakage, is latchable as much as possible, and is removable. In FIG. 1, the separation joint between the sealing cap 10 and the shaft 30 extending substantially perpendicular to the longitudinal direction of the wet writing instrument S is indicated by reference numeral 20. It can be seen that the separation joint does not exist at the base common to the two triangles having the kite-shaped quadrilateral, but at the area of the sealing cap 10.

  The closure cap 10 made of a suitable plastic material has an end 10a extending substantially perpendicular to the longitudinal centerline of the closure cap 10 and the wet writing implement S, and a side wall 10b directly connected to the end 10a. These define or form a hollow space 10c. On the opposite side of the end 10a, that is, on the right side of the sealing cap 10, an insertion opening 10d for attaching the sealing cap 10 to the shaft 30 is provided.

  At a position in the hollow space 10c remote from the insertion opening 10d, there is provided a separating wall 10e extending substantially perpendicular to the longitudinal direction of the sealing cap 10 or the wet writing implement S, and thus parallel to the end 10a.

  As shown in FIG. 2, the distance between the insertion opening 10d and the separation wall 10e in the longitudinal direction of the sealing cap 10 is much smaller than the distance from the end 10a of the sealing cap 10. 2 and 3, the separating wall 10e is shown as the same component as the side wall 10b, but is actually an independent part, and will be described later in detail in the manufacturing stage of the wet writing instrument S of the present invention. After the writing liquid storage means 12 is accommodated, it is housed in the sealing cap 10 and attached to the side wall 10b of the sealing cap 10 by ultrasonic welding.

  The separating wall 10e is arranged concentrically with respect to the longitudinal axis of the sealing cap 10 or the shaft 30 and has a hole 10f whose shape and dimensions correspond to the outer shape of the nib region 32 of the shaft 30, which will be described in detail later. ing. The hole 10f is defined in the direction of the end 10a of the sealing cap 10, ie, to the left, by bending the edge of the separation wall 10e that defines the hole 10f.

  Inside the closed cap 10, a first writing liquid storage means 12 for storing and storing a writing liquid is provided. In a preferred embodiment of the present invention, the writing liquid storage means 12 is formed of a fibrous material. As shown in FIGS. 2 and 3, the writing liquid storage means 12 is arranged at an interval from the end 10a of the sealing cap 10 and the separation wall 10e. Providing the two intervals is optional, and it is not necessary to provide both or one of them. The writing liquid storage means 12 is formed in accordance with the shape of the hollow space 10c of the closed cap 10.

  Shaft 30, which may be or may be formed of a suitable plastic material, especially the same plastic material as sealing cap 10, also has an end 30 a that extends substantially perpendicular to the longitudinal centerline of shaft 30, and It has a side wall 30b directly connected to the end 30a, which defines or defines a hollow space 30c. On the opposite side of the end 30a of the shaft 30, there is provided a protective wall 30d connected to the side wall 30b of the shaft 30 by ultrasonic welding.

  As shown in particular in FIG. 3, the protective wall 30d has a conical shape with a concave side wall and has a circular opening 30e arranged concentrically with respect to the axis 30 or the longitudinal axis of the sealing cap 10. ing. As shown in FIG. 3, since the outer diameter of the opening 30e substantially matches the inner diameter of the hole 10f of the sealing cap 10, when the sealing cap 10 is attached to the shaft 30, the protective wall defining the opening 30e is formed. A portion of 30d can fit in hole 10f and are hermetically connected to each other.

  As shown in FIG. 3, what is housed in the opening 30e is a capillary nib 32 having a wedge-shaped structure cut diagonally from lower left to upper right. The capillary pen tip 32 protrudes from the opening 30e toward the sealing cap 10. Therefore, when the sealing cap 10 is attached, the capillary pen tip 32 can fit into the recess 12a of the writing liquid storage means 12 of the sealing cap 10 having a shape corresponding to the capillary pen tip 32, and can attract liquid.

  As shown in FIG. 3, the second writing liquid storage means 34 is provided in the hollow space 30c at an interval from the end 30a and the protective wall 30d. The writing liquid storage means 34 is formed in accordance with the shape of the shaft 30.

  The writing liquid storage means 34 communicates with the capillary nib 32 via the writing liquid inducing elements 32 a and 32 b of the capillary nib 32, and the writing liquid is attracted to the capillary nib 32. The capillary action of the second writing liquid storage means 34 is smaller than the capillary pen tip 32 and larger than the first writing liquid storage means in the closed cap 10. With the above, when the sealing cap 10 is attached to the shaft 30, due to the difference in capillary action between the first storage means 12 and the capillary nib, and the difference in capillary action between the first and second storage means 12 and 34, The writing liquid in the first writing liquid storage means 12 clearly travels from the first writing liquid storage means 12 to the capillary nib 32, but not to the second storage means 34. When the sealing cap 10 is removed from the shaft 30, the writing liquid is transmitted from the storage means 34 to the capillary nib 32 due to a difference in capillary action between the capillary nib 32 and the second storage means 34.

  In this connection, it is preferable to fill the writing liquid into the first writing liquid storage means with the sealing cap 10 laid on its side. When the closed cap 10 is in an unfavorable position, it is preferable that the closed cap 10 and / or the storage unit 12 be compact in order to prevent the writing liquid from flowing out from the first writing liquid storage unit 12.

  It is particularly preferred to provide the writing liquid storage means 12 in the closed cap for many wet writing instruments S of different colors. When the capillary pen tip 32 of the wet writing instrument S of the present invention, to which one color is supplied from the second writing liquid storage means 34, is "dipped" into a sealing cap having another color, the two colors can be mixed. Since the amount of the writing liquid taken in by the capillary nib 32 is proportional to the time during which the sealing cap 10 is attached to the shaft 30, that is, the capillary nib 32, the degree of color mixing can be adjusted. Since the refilled writing liquid is contained in the pen tip 32 at a high concentration, the pen tip 32 becomes empty, and the color of the writing liquid is changed when the writing liquid penetrates from the second storage means 34. Can be.

The side view which shows the wet writing implement of this invention. The figure similar to FIG. 1 which shows the cross section of a sealing cap. The figure similar to FIG. 2 which shows the cross section of a shaft.

Explanation of reference numerals

S Wet writing instrument 10 Sealing cap 10a End 10b Side wall 10c Hollow space 10d Cap inlet opening (insertion opening)
10e Separation wall 10f Hole 20 Separation joint 30 Shaft 30a End 30b Side wall 30c Hollow space 30d Protective wall 30e Circular opening 32 Capillary nib 32a, 32b Writing liquid attracting element

Claims (9)

    A wet writing implement having a shaft (30) for holding a capillary nib (32) and a sealing cap (10) removably attachable to said shaft (30) for protecting said nib (32). A writing implement characterized by comprising a writing liquid storage means (12) for storing a writing liquid in the closed cap (10).     At a position within the closure cap (10) spaced from the end (10a) of the closure cap (10), the liquid storage means (10d) with respect to a cap inlet opening (10d) for receiving the shaft (30). 12), when the closed cap (10) is attached to the shaft (30), the capillary pen tip (32) comes into contact with the writing liquid stored in the writing liquid storage means (12). The writing instrument according to claim 1, further comprising a separation wall (10e) having a hole (10f) through which the writing liquid can be attracted.   3. A writing implement according to claim 1, wherein the capillary action of the writing liquid storage means (12) in the sealing cap (10) is smaller than the capillary pen tip (32).   4. A writing implement according to any one of the preceding claims, characterized in that another writing liquid storage means (34) is provided on the shaft (30).   Capillary action of the writing liquid storage means (34) provided in the shaft (30) is smaller than the capillary pen tip (32) and larger than the writing liquid storage means (12) in the closed cap (10). The writing implement according to claim 4, characterized in that:   The writing liquid storage means (34) provided in the shaft (30) is shielded from the outside by a protective wall (30d) appropriately holding the capillary nib (32). Or the writing implement according to 5.   7. The writing liquid storage means (12, 34) provided in the sealing cap (10) and / or the shaft (30) is made of a sponge material or a fiber material. Writing instrument described.   The separation wall (10e) provided in the sealing cap (10) and / or the protective wall (30d) provided on the shaft (30) are each formed by ultrasonic welding with the sealing cap (10) or the shaft ( The writing instrument according to any one of claims 1 to 7, wherein the writing instrument is attached to the device (30) in a liquid-sealable manner.   9. A writing implement according to claim 1, wherein the capillary pen tip (32) is a wedge-shaped structure having a bevel.

Images